I have no idea what you did but probably best to set it back to default until you can research it more. The new consensus seems to be that intensive system tweaks like that are a thing of the past if you are on a modern OS using modern hardware. Just the simple power management tweaks (so nothing is going to sleep) and keeping your programs (like AVs and other stuff) from auto launching or phoning home.
 
What I was referring to is indeed within Sonar. No need to go mucking about within the Win Control Panel.
 
However when making system tweaks VIA Windows Control Panel create a restore point (or even a system image) so if something goes wrong you can revert back to the previous state.

Well not control panel, but "my computer", HDD icons, right click one, select properties...ect.
Cause there was mention of HDD icon..and I thought it was that process..and found only the quota tab to be relevant sort of in hard drive preferences to raising the cache or limit of something...So I put no limit...is that good?..what is the default level set to???...oh well I will put it back now......LOL
 
I found this.
http://www.sevenforums.com/tutorials/76002-disk-quota-set-space-limits-users.html
 
not that it is relevant to caching or anything, you are talking about..., Just learning what can be done...and not to do things done to undo...So I stay with the sheep.
 
Cheers!